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水稻光合生理生态和干物质生产的研究与水稻生产的关系十分密切,五十年代以来,特别是近十几年,受到国内外研究者的高度重视。长沙地区属中亚热带内陆季风湿润气候区,水稻生产以双季稻为主,近年来推广杂交早稻和杂交晚稻,迫切要求研究解决栽培期问题。本研究采用近年来在我省推广面积较大又有代表性的几个杂交水稻组合作为试验材料,试图通过对杂交水稻的干物质生产的生态生理及其与杂交水稻产量形成、产量结构、产量以及稻米品质的关系的研充,找出在长沙地区水稻生长期内的光热条件下,杂交水稻的适宜栽培期特别是最优栽培期。
The relationship between rice photosynthesis, physiological ecology and dry matter production and rice production is very close. Since the 1950s, especially in the last decade or so, it has been highly valued by researchers at home and abroad. Changsha region belongs to the humid subtropical inland monsoon climate zone, rice production is dominated by double cropping rice in recent years to promote hybrid early rice and late hybrid rice, it is urgent to study and solve the problem of cultivation. In this study, several hybrid rice combinations with large and representative areas were popularized in our province in recent years as experimental materials, and the ecological physiology of dry matter production of hybrid rice and its relationship with yield formation, yield structure, yield And the relationship between the quality of rice research to identify the light during the rice growing season in Changsha region under the conditions of heat, suitable for the cultivation of hybrid rice, especially the optimal cultivation period.